Siemens SF25 strange behaviour

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  • March 6, 2016 at 12:51 am #87801
    lewisham_phil
    Participant

    Hi, hope someone can help on this.
    The model is a Siemens SF25TO53, stainless steel, 450 wide with controls hidden on the top edge of the door; it’s about 12 years old and this is the first time it’s played up (but it has had a fairly easy life). I can’t find a circuit diagram or service manual anywhere, and it is doesn’t seem to have error codes.
    Whenever the unit is switched on, the recirculation pump activates straight away; there is no water being allowed in, and it doesn’t seem to be activating the drain pump (even if the sump float switch in the base is activated manually). I have checked the pump, it seems fine, but no power is getting to it. I would assume that the pump would be activated at any time if the sump float switch is activated??
    Is there some other control I don’t know about? Should the recirc pump be running from the off in all modes?
    I’d be grateful for any ideas on this.
    Thanks
    Phil
    Thanks
    Phil

    March 6, 2016 at 8:01 am #436043
    Martin
    Participant

    Re: Siemens SF25 strange behaviour

    First thing Phil, have you tried resetting the programme? (That’s with the switch on and pressing the 2nd & 4th buttons together, then close the door – it should turn off in 60 secs)

    March 10, 2016 at 3:09 pm #436044
    lewisham_phil
    Participant

    Re: Siemens SF25 strange behaviour

    Hah! That did it! Thanks Martin; I was expecting the worst, and looking at replacement PCB controllers.. so you’ve saved me a lot of grief.
    Cheers
    Phil

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